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Illusioluidia
Taxonomy
Illusioluidia was named by Blake and Guensburg (1989) [Sepkoski's age data: C Step-l]. It is not extant. Its type is Illusioluidia teneryi. It is the type genus of Illusioluididae.
It was assigned to Uractinida by Blake and Guensburg (1989) and Sepkoski (2002); and to Illusioluididae by Blake (2018).
It was assigned to Uractinida by Blake and Guensburg (1989) and Sepkoski (2002); and to Illusioluididae by Blake (2018).
Species
I. teneryi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Illusioluidia Blake and Guensburg p. 665 |
| 2002 | Illusioluidia Sepkoski |
| 2018 | Illusioluidia Blake p. 49 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Illusioluidia Blake and Guensburg 1989
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†Illusioluidia teneryi Blake and Guensburg 1989
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and T. E. Guensburg 1989 | Five-armed asteroid, arms long, gradually tapered, disk small, flat; true paxillae present, bearing spoon- or fan-shaped spines; marginals not obviously differentiated; adambulacral large, broad, short, separated by well-defined interadambulacral channels; ambulacrals very small; adambulacrals, ambulacrals paired (not offset), podial pores lacking. |